Pole or post.



'Nm-723.085. PATBNTBD MAR. A17, 19013.A o. B. VOYNQW. w POLE 0R Pos1?.

APPLICATION FILED SEPT. 25, 1902.-

No MODEL UNITED STATES ATENT OFFICE.

` CONSTANTINE B. VOYNOVV, OF PHILADELPHIA, PENNSYLVANIA.

POLE OR POST.

SPECIFICATION forming part of Letters Patent N 0. 723,085, dated March17, 1903.

l Application tiled September 25,1902. Serial No. 124,773. (No modei.)

To a/ZZ tvhom itmay subern): Be it known that I, CoNsTANTINE B. VVov-NOW, a citizen of the United States, residing t inPhiladelphia,Pennsylvania, haveinvented certain Improvements in Poles orPosts, of which the following is a specification.-

Myinvention consists of an improved form of pole, `theobject of the samebeing to provide an improved construction by which certain portions of apole may be reinforced or strengthened either at the time of manufactureof the pole or after it has been in use for a more or lessprolongedperiod of time.

This objectI attain as hereinafter set forth,`

reference being 4had to the accompanying drawings, in which- 'F.igure 'lis auelevation ofa metallic trolley or electric-lightpole constructedaccording to my invention. Fig. 2 is a sectional elevation, somewhatenlarged, of a portion` of the pole illustrated in Fig. 1. Fig. 3 is aside elevation of a portion of a pole similar-to that shown in Fig.2,\eXcept that the reinforcing or protecting ring shown in said figurehas been replaced by a construction composed of rolled sections. Fig. 4'is a sectional plan view of the poleshown.' in Fig. 3, taken on theline44; and Fig. 5 isasectionalplan View of the pole illustrated i'n Fig. 2,the same bef ing taken on the line 55.

In the above drawings, A Al represent two telescoping sections of ametallic trolley or wire carrying pole of the well-known "construction,"this being shown in the drawings as under operative conditions. It hasbeen found in practice that'poles of this construci tion are apt to beweakest and after prolonged use to fail at several localizedpoints--viz., at or near the groundlevel and at the point or points atwhich the sections are joinedto one another. i By` my invention Ipropose to materially increase the strength of these parts of the pole,as well as to protect the same, by

' means of a-looselyiitting metallic sleeve of such dimensions that itshall extend on both "sides of the point at which failure is likely to`occur or atwhich it is desired to strengthen l the pole.` Afterslippingthispole in position I fill the space between it and the bodyofthe pole with some liquid or molten material which naturally will havea fusing-point below that of the material composing the pole astype-metal, liquid or semiliquid cement, or,

in fact, any material which couldbe conveniently introduced into thespace between the sleeve'and the pole and `which would afterwardharden.`

When employing zinc, sulfur, or similar materials, I have found that inorder to secure the best results it is advisable to heat the sleeve Cbefore introducing the moltenxmetal between it and the pole, so that assaid sleeve cools the material is forced by its shrinkage into everyirregularity of the surface, both of the sleeve and the pole, therebymaking a tight a-nd wea ther-proof filling, as shownat E.

If it is desired to apply the invention to a pole at the point ofjunction oftwo of its sections, the sleeve may be either cylindrical, as

shown at C, or of the form shown at D, it be.

ing, however, elongated to a greater. extent than the ordinarywell-known forms of sleeve hitherto used and provided with fillingmaterial E,as indicated in Fig. 2 and `as described above.

If for any reason it should not be possible or practical to use acontinuous sleeve of the form shown in Figs. 1, 2, and 5, I may withoutdeparting from the main feature of my invention employ a sleeve made inone or more sections and preferably of the construction shown in Figs. 3and 4, where I have used a combination of rolled pieces, which t0-gether are known as a Phoenix section, these being riveted together inpairs and the pairs connected, as shown, by bolts. It will be understoodthat the said section C', like i the sleeve O, fits the body of the poleA loosely,

and after it has been bolted or .riveted in position I till the spacebetween it and the pole with liquid material of the nature indicatedabove. If desired, the top edge of any of these sleeves may be beveled,as shown at e in Fig. 2, and the filling material E or E is similarlybeveled in continuation of the bevel of the sleeve, or the sleeve may becut at an angle to itsaxis, so as to allow any water to run O. It willbe understood that my invention is not confined to the application ofsleeves to poles at the time of their manu- IOO facture, since they maybe with great ad vantage applied to a pole after it has been set inposition and is in use. It has been found that after a lapse of a shortperiod of time metallic poles are almost invariably seriously corrodedor rusted at points coincident with or adjacent to the ground-level(indicated by the letter a) and also at the point of junction of twosections, with the result that sooner or later the pole will fail at oneof the above points, owing to the diminished cross-section and thestrain caused by the wire or apparatus carried thereby. It willtherefore be seen that my invention is particularly applicable to poleswhich would ordinarily be nearly worthless and which would requireremoval, owing to their unsafe condition.

If desired, I may clean the outside surface of the pole at the point tobe covered by the sleeve and also the inside surface of said sleeveprevious to the introduction of the liquid or molten material,employing'for this purpose a sand-blast, emery-wheel, or otherwell-known method. Another use to which it will be seen that myinvention may be advantageously applied is in the prolongation of thelife of metallic or, in fact, wooden piles, which almost invariablybecome corroded or rotted at that port-ion of their surface which isalternately exposed to the action of air and water.

It is of course immaterial whether the sleeve C is of cast or sheetmetal, and it would be preferable when applying the invention to woodenpiles to employ a iilling material having a relatively low fusing-point.

I claim as my inventionl. A pole having a loose sleeve around a portionthereof,`said sleeve consisting of a piece independent of the polestructure and having the space between itself and the pole illed with afusible material, substantially as described.

2. A pole having a loose sleeve around a portion thereof, said sleevebeing independent of the pole structure and having the space betweenitself and the pole filled with a maferial in a molten state, thefusing-point of said material being lower than that of either the poleor the sleeve, substantiallly as de- 5o scribed.

3. A pole having aA loose sleeve around a portion thereof, the spacebetween said sleeve and the pole being iilled with a fusible material,said sleeve being of a temperature such that it exerts pressure uponsaid material after the same has been insertedl in said space andhasbeen permitted to attain its normal temperature, substantially asdescribed.

4. The combination of a pole having a loose 6o sleeve around a portionthereof and'having the space between said sleeve and the pole filledwith a fusible material, the sleeve being made in a plurality ofsections and having means whereby said sections are detachably heldtogetl1er,substantially as described.

5. The combination of a pole consisting of sections of differentdiameters, a loose sleeve having two sections also of dierent diametersand fitting over said pole at the point of 7o junction of two of saidsections, with fusible material filling the space between the pole andsaid sleeve, substantially as described.

6. The combination of a pole made in a plurality of sections, a sleeveloosely fitting said pole made in two sections of dierent diameters andconstructed to surround the pole at the point of junction of two of itssections and a fusible material filling the space between said sleeveand the pole, said material 8o bearing upon the end of one of thepole-sections and thereby retaining itself and the sleeve in position,substantially as described. In testimony whereof I have signed my nameto this specification in the presence of two subscribing witnesses.

CON STANTINE B. VOYNOW.

Witnesses:

WILLIAM E. BRADLEY, Jos. H. KLEIN.

